Is it possible to use adb or fastboot on a phone completely hard bricked?


Recognized Contributor
Jun 12, 2010
Las Vegas
No, unfortunately it is not possible. The only possible way to recover would be from EDL (Emergency Download Mode), which requires manufacturer specific drivers and encryption keys.
If your phone is an Xiaomi, you are probably in luck, as Xiaomi provides EDL recovery tools for most of their phones.
However, they are the only manufacturer that I know of that does this.
Good luck my friend